Amazon FBA Profit Calculator
Calculate true FBA profit per unit after referral fees, fulfillment fees, COGS, PPC, and shipping. Know your real margin before you sell.
Trusted by 7-figure Amazon sellers to validate products and protect margins.
Product & Fees
Enter per-unit figures from Seller Central
Your listing price
Cost of goods per unit
Amazon commission (default 15%)
Per-unit FBA fee
Optional Costs
Add for a more accurate net profit
Per-unit ad attribution
Shipping to FBA per unit
Monthly storage per unit
Scale to total inventory
Enter Sale Price + COGS
Your FBA profit breakdown will appear here instantly.
Want deeper profit analytics?
We build Sellerboard dashboards, P&L trackers, and FBA analytics for 7-figure brands.
Get a Free Analytics Audit →How to Calculate Amazon FBA Profit
What costs does Amazon FBA take?
Every FBA sale incurs: Referral Fee (8–20% depending on category), FBA Fulfillment Fee (based on size/weight), and optionally Monthly Storage Fees. You also need to factor in your COGS, inbound shipping costs, and PPC ad spend to see true net profit.
What is a good FBA profit margin?
Most successful FBA sellers target 20–40% net margin after all costs. Below 15% is risky — any fee change, price war, or ad cost increase can wipe out profits. Above 40% is excellent and scalable.
What is ROI on COGS?
ROI on COGS = (Net Profit ÷ COGS) × 100. Serious FBA sellers target 50–150% ROI. A 100% ROI means every $1 in product cost returns $1 in profit. This helps you compare sourcing opportunities and allocate capital to the best-performing SKUs.
Break-even price calculation
Break-even price = Total costs ÷ (1 − referral fee %). This is the absolute minimum you must charge to break even. Any price below this means a guaranteed loss per unit. Always keep your actual price at least 20% above break-even for a healthy buffer.
Built by MishraBrandTechAi — we build FBA analytics systems, Sellerboard P&L dashboards, and inventory intelligence for 7-figure Amazon brands. See our analytics work →